I bought these as one of many supplements I bought to combat low breast milk supply after the birth of my now 2 month old son. My doctor had diagnosed me with hypoplasia (insufficient breast gland tissue) due to polycystic ovarian syndrome and he suggested trying a variety of herbal supplements to boost my supply. Alfalfa was one of them.
Alfalfa leaves like the ones I purchased are relatively inexpensive and come in the form of a capsule filled with the dry and powdered leaves. These were a yellowish brown in color. Upon opening the bottle there is a strong odor but it is not unpleasant. It reminded me a bit of a unbrewed tea bag.
There is a bit of a taste when swallowing the capsules but it's gone fast with water. They are a bit big so keep that in mind if taking more than one at a time. My doctor had me take 4 capsules three times a day along with similar amounts of blessed thistle and fenugreek. The smooth coating does make them easy to swallow despite the fairly large size.
I took them as a galactagogue and saw little to no result from them but other women have had a breast milk increase upon taking alfalfa so your mileage may vary. Kellymom.com recommends taking alfalfa with wild lettuce and that can sometimes improve results but I have not yet tried this.
Overall, I had no negative effects from taking these but I had no benefits either so I would give them a 3.